Prunes have been sold as a popular digestive remedy for decades mainly because of these three components: fibre, sorbitol (a sugar alcohol that can loosen the stool) and a natural laxative compound called diphenyl isatin.

Prunes have been sold as a popular digestive remedy for decades mainly because of these three components: fibre, sorbitol (a sugar alcohol that can loosen the stool) and a natural laxative compound called diphenyl isatin.